From: Borislav Petkov <bp@alien8.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
kexec@lists.infradead.org, "Lee,
Chun-Yi" <joeyli.kernel@gmail.com>,
linux-arch@vger.kernel.org, linux-mm <linux-mm@kvack.org>,
Minfei Huang <mnfhuang@gmail.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Takao Indoh <indou.takao@jp.fujitsu.com>,
Thomas Gleixner <tglx@linutronix.de>,
Viresh Kumar <viresh.kumar@linaro.org>, x86-ml <x86@kernel.org>
Subject: [PATCH 15/17] x86/kexec: Remove walk_iomem_res() call with GART type
Date: Tue, 26 Jan 2016 21:57:31 +0100 [thread overview]
Message-ID: <1453841853-11383-16-git-send-email-bp@alien8.de> (raw)
In-Reply-To: <1453841853-11383-1-git-send-email-bp@alien8.de>
From: Toshi Kani <toshi.kani@hpe.com>
There is no longer any driver inserting a "GART" region in the kernel
since
707d4eefbdb3 ("Revert "[PATCH] Insert GART region into resource map"").
Remove the call to walk_iomem_res() with "GART" type, its callback
function, and GART-specific variables set by the callback.
Reviewed-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: kexec@lists.infradead.org
Cc: "Lee, Chun-Yi" <joeyli.kernel@gmail.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-mm <linux-mm@kvack.org>
Cc: Minfei Huang <mnfhuang@gmail.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Takao Indoh <indou.takao@jp.fujitsu.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20160104110427.GA2965@dhcp-128-65.nay.redhat.com
Link: http://lkml.kernel.org/r/1452020081-26534-15-git-send-email-toshi.kani@hpe.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
arch/x86/kernel/crash.c | 37 +------------------------------------
1 file changed, 1 insertion(+), 36 deletions(-)
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 35e152eeb6e0..9ef978d69c22 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -57,10 +57,9 @@ struct crash_elf_data {
struct kimage *image;
/*
* Total number of ram ranges we have after various adjustments for
- * GART, crash reserved region etc.
+ * crash reserved region, etc.
*/
unsigned int max_nr_ranges;
- unsigned long gart_start, gart_end;
/* Pointer to elf header */
void *ehdr;
@@ -201,17 +200,6 @@ static int get_nr_ram_ranges_callback(u64 start, u64 end, void *arg)
return 0;
}
-static int get_gart_ranges_callback(u64 start, u64 end, void *arg)
-{
- struct crash_elf_data *ced = arg;
-
- ced->gart_start = start;
- ced->gart_end = end;
-
- /* Not expecting more than 1 gart aperture */
- return 1;
-}
-
/* Gather all the required information to prepare elf headers for ram regions */
static void fill_up_crash_elf_data(struct crash_elf_data *ced,
@@ -226,22 +214,6 @@ static void fill_up_crash_elf_data(struct crash_elf_data *ced,
ced->max_nr_ranges = nr_ranges;
- /*
- * We don't create ELF headers for GART aperture as an attempt
- * to dump this memory in second kernel leads to hang/crash.
- * If gart aperture is present, one needs to exclude that region
- * and that could lead to need of extra phdr.
- */
- walk_iomem_res("GART", IORESOURCE_MEM, 0, -1,
- ced, get_gart_ranges_callback);
-
- /*
- * If we have gart region, excluding that could potentially split
- * a memory range, resulting in extra header. Account for that.
- */
- if (ced->gart_end)
- ced->max_nr_ranges++;
-
/* Exclusion of crash region could split memory ranges */
ced->max_nr_ranges++;
@@ -350,13 +322,6 @@ static int elf_header_exclude_ranges(struct crash_elf_data *ced,
return ret;
}
- /* Exclude GART region */
- if (ced->gart_end) {
- ret = exclude_mem_range(cmem, ced->gart_start, ced->gart_end);
- if (ret)
- return ret;
- }
-
return ret;
}
--
2.3.5
next prev parent reply other threads:[~2016-01-26 20:57 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1453841853-11383-1-git-send-email-bp@alien8.de>
2016-01-26 20:57 ` [PATCH 01/17] resource: Add System RAM resource type Borislav Petkov
2016-01-26 20:57 ` [PATCH 02/17] resource: Handle resource flags properly Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 03/17] resource: Add I/O resource descriptor Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 04/17] x86/e820: Set System RAM type and descriptor Borislav Petkov
2016-01-26 20:57 ` [PATCH 05/17] ia64: " Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 06/17] arch: Set IORESOURCE_SYSTEM_RAM flag for System RAM Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
[not found] ` <1453841853-11383-1-git-send-email-bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
2016-01-26 20:57 ` [PATCH 07/17] kexec: Set IORESOURCE_SYSTEM_RAM " Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 08/17] xen, mm: Set IORESOURCE_SYSTEM_RAM to " Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 09/17] drivers: Initialize resource entry to zero Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 10/17] resource: Change walk_system_ram() to use System RAM type Borislav Petkov
2016-01-26 20:57 ` [PATCH 11/17] arm/samsung: Change s3c_pm_run_res() " Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 12/17] memremap: Change region_intersects() to take @flags and @desc Borislav Petkov
2016-01-26 21:08 ` Dan Williams
2016-01-26 21:08 ` Dan Williams
2016-01-26 20:57 ` [PATCH 13/17] resource: Add walk_iomem_res_desc() Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 14/17] x86, kexec, nvdimm: Use walk_iomem_res_desc() for iomem search Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov [this message]
2016-01-26 20:57 ` [PATCH 16/17] resource: Kill walk_iomem_res() Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
2016-01-26 20:57 ` [PATCH 17/17] ACPI/EINJ: Allow memory error injection to NVDIMM Borislav Petkov
2016-01-26 20:57 ` Borislav Petkov
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